单宁酸修饰的还原氧化石墨烯薄膜用于高性能超级电容器

IF 2.6 4区 化学 Q3 ELECTROCHEMISTRY
Wei Wang, Qiang Li, Yage Pan, Chuanren R. Ye, Xingnian Li, Yingyu Chen, Qiong Tang, Jun Xu, Yanwu Zhu
{"title":"单宁酸修饰的还原氧化石墨烯薄膜用于高性能超级电容器","authors":"Wei Wang,&nbsp;Qiang Li,&nbsp;Yage Pan,&nbsp;Chuanren R. Ye,&nbsp;Xingnian Li,&nbsp;Yingyu Chen,&nbsp;Qiong Tang,&nbsp;Jun Xu,&nbsp;Yanwu Zhu","doi":"10.1007/s10008-024-05946-y","DOIUrl":null,"url":null,"abstract":"<div><p>When graphene oxide (GO) was reduced, the stacking of reduced graphene oxide (rGO) sheets would lead to far lower of its specific capacitance than the theoretical value of graphene. In order to solve this problem, we use tannic acid (TA) to modify the rGO layered film by vacuum filtration of the mixture of GO and TA in solution, and then mild thermal reduction at 180℃. Due to the rich redox active functional groups of TA, the introduction of TA can not only alleviate the stacking of rGO sheets and promote the reduction process of GO at relatively low temperature, but also provide additional pseudocapacitance. When used for two-electrode symmetrical supercapacitor in 6 M KOH electrolyte, the TrGO-0.5 gives areal capacitance of 525 mF cm<sup>−2</sup>, and energy density of 72.2 uWh cm<sup>−2</sup> at power density of 250.9 uW cm<sup>−2</sup>. It also has capacitance retention of 91.7% after 10,000 charging/discharging cycles at current density of 4 mA cm<sup>−2</sup>. The TrGO-0.5 based button cell with 2 M 1-ethyl-3-methylimidazole tetrafluoroborate (EMIMBF<sub>4</sub>) as electrolyte shows the practical application to light up three LEDs.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Reduced graphene oxide film modified by tannic acid for high areal performance supercapacitors\",\"authors\":\"Wei Wang,&nbsp;Qiang Li,&nbsp;Yage Pan,&nbsp;Chuanren R. Ye,&nbsp;Xingnian Li,&nbsp;Yingyu Chen,&nbsp;Qiong Tang,&nbsp;Jun Xu,&nbsp;Yanwu Zhu\",\"doi\":\"10.1007/s10008-024-05946-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>When graphene oxide (GO) was reduced, the stacking of reduced graphene oxide (rGO) sheets would lead to far lower of its specific capacitance than the theoretical value of graphene. In order to solve this problem, we use tannic acid (TA) to modify the rGO layered film by vacuum filtration of the mixture of GO and TA in solution, and then mild thermal reduction at 180℃. Due to the rich redox active functional groups of TA, the introduction of TA can not only alleviate the stacking of rGO sheets and promote the reduction process of GO at relatively low temperature, but also provide additional pseudocapacitance. When used for two-electrode symmetrical supercapacitor in 6 M KOH electrolyte, the TrGO-0.5 gives areal capacitance of 525 mF cm<sup>−2</sup>, and energy density of 72.2 uWh cm<sup>−2</sup> at power density of 250.9 uW cm<sup>−2</sup>. It also has capacitance retention of 91.7% after 10,000 charging/discharging cycles at current density of 4 mA cm<sup>−2</sup>. The TrGO-0.5 based button cell with 2 M 1-ethyl-3-methylimidazole tetrafluoroborate (EMIMBF<sub>4</sub>) as electrolyte shows the practical application to light up three LEDs.</p></div>\",\"PeriodicalId\":665,\"journal\":{\"name\":\"Journal of Solid State Electrochemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2024-07-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Solid State Electrochemistry\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10008-024-05946-y\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ELECTROCHEMISTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solid State Electrochemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10008-024-05946-y","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0

摘要

当氧化石墨烯(GO)被还原时,还原氧化石墨烯(rGO)薄片的堆叠会导致其比电容远低于石墨烯的理论值。为了解决这个问题,我们使用单宁酸(TA)对 rGO 层膜进行改性,方法是真空过滤溶液中的 GO 和 TA 混合物,然后在 180℃下进行温和的热还原。由于 TA 含有丰富的氧化还原活性官能团,TA 的引入不仅可以缓解 rGO 片层的堆叠,促进 GO 在相对较低温度下的还原过程,还能提供额外的伪电容。在 6 M KOH 电解液中用于双电极对称超级电容器时,TrGO-0.5 的面积电容为 525 mF cm-2,能量密度为 72.2 uWh cm-2,功率密度为 250.9 uW cm-2。在电流密度为 4 mA cm-2 时,经过 10,000 次充电/放电循环后,电容保持率为 91.7%。基于 TrGO-0.5 的纽扣电池以 2 M 1-ethyl-3-methylimidazole tetrafluoroborate (EMIMBF4) 为电解质,显示了点亮三个 LED 的实际应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Reduced graphene oxide film modified by tannic acid for high areal performance supercapacitors

Reduced graphene oxide film modified by tannic acid for high areal performance supercapacitors

When graphene oxide (GO) was reduced, the stacking of reduced graphene oxide (rGO) sheets would lead to far lower of its specific capacitance than the theoretical value of graphene. In order to solve this problem, we use tannic acid (TA) to modify the rGO layered film by vacuum filtration of the mixture of GO and TA in solution, and then mild thermal reduction at 180℃. Due to the rich redox active functional groups of TA, the introduction of TA can not only alleviate the stacking of rGO sheets and promote the reduction process of GO at relatively low temperature, but also provide additional pseudocapacitance. When used for two-electrode symmetrical supercapacitor in 6 M KOH electrolyte, the TrGO-0.5 gives areal capacitance of 525 mF cm−2, and energy density of 72.2 uWh cm−2 at power density of 250.9 uW cm−2. It also has capacitance retention of 91.7% after 10,000 charging/discharging cycles at current density of 4 mA cm−2. The TrGO-0.5 based button cell with 2 M 1-ethyl-3-methylimidazole tetrafluoroborate (EMIMBF4) as electrolyte shows the practical application to light up three LEDs.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
4.80
自引率
4.00%
发文量
227
审稿时长
4.1 months
期刊介绍: The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry. The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces. The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis. The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信